Briefly, Shipping

I get a lot of packages, via USPS Priority Mail mostly. Nothing has ever been lost in 1000s of packages. Four times in ten years a package has seemed to have gone missing. Two times, the package was addressed incorrectly and the post office found it promptly. One other time it turned out that the package had never actually been sent, and on the forth occasion the package had actually been sent to a completely different shop.